Preventive medicine
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Preventive medicine · Nov 2021
Identifying key barriers to effective breast cancer control in rural settings.
Breast cancer is the most common cancer and the second most common cause of cancer mortality among women in the United States. Efforts to promote breast cancer control in rural settings face specific challenges. Access to breast cancer screening, diagnosis, and treatment services is impaired by shortages of primary care and specialist providers, and geographic distance from medical facilities. ⋯ Travel distance to treatment centers is the most substantial barrier to improved breast cancer outcomes in rural areas. While numerous interventions have been demonstrated in controlled studies to be effective in promoting treatment access and adherence, widespread dissemination in public health and clinical practice remains lacking. Efforts to improve breast cancer control in rural areas should focus on implementation strategies for improving access to breast cancer treatments.
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Preventive medicine · Nov 2021
Exposure to ambient air pollution during childhood and subsequent risk of self-harm: A national cohort study.
A growing body of evidence indicates that exposure to air pollution not only impacts on physical health but is also linked with a deterioration in mental health. We conducted the first study to investigate exposure to ambient particulate matter with an aerodynamic diameter of less than 2.5 μm (PM2.5) and nitrogen dioxide (NO2) during childhood and subsequent self-harm risk. The study cohort included persons born in Denmark between January 1, 1979 and December 31, 2006 (N = 1,424,670), with information on daily exposures to PM2.5 and NO2 at residence from birth to 10th birthday. ⋯ Higher mean daily exposure to NO2 during childhood was also linked with increased self-harm risk, but the dose-response relationship observed was less evident than for PM2.5. Covariate adjustment attenuated the associations, but risk remained independently elevated. Although causality cannot be assumed, these novel findings indicate a potential etiological involvement of ambient air pollution in the development of mental ill health.
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Preventive medicine · Nov 2021
ReviewSuicide, firearms, and legislation: A review of the Canadian evidence.
Suicide accounts for approximately 4000 deaths a year in Canada, of which about 16% of those are suicide using a firearm. Canada has undertaken legislative efforts to regulate and control firearms, Bill C-51 in 1977 and Bills C-17 and C-68 in 1991 and 1995. Regulatory approaches that decrease the availability of firearms are hypothesized to reduce suicide by firearm however the substitution effect suggests it is possible that people may substitute other methods of suicide in place. ⋯ Six studies examining the effects of Bill C-17 and C-68 revealed a decrease in the rates of suicide by firearms, with a corresponding increase in non-firearms suicide rates and no decrease in overall suicide rates. One study even suggested no associated decrease in firearm suicide rates with an increasing rate of suicide by hanging possibly due to changes in preferences. These results suggest legislation has mixed effects on firearm suicide rates and may not alone reduce overall suicide in Canada.
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Preventive medicine · Nov 2021
ReviewContributing factors to suicide: Political, social, cultural and economic.
This review summarizes recent research in four environmental areas affecting risk of deaths by suicide. Politically, the weight of the evidence suggests that laws increasing social welfare expenditures and other policies assisting persons with low incomes (e.g., minimum wage) tend to lower suicide rates. Other legal changes such as those restricting firearms and alcohol availability can also prevent suicides. ⋯ At the individual level of analysis, two of the strongest predictors of suicide are economic ones: unemployment and low socio-economic status. Attention is drawn to enhancing the minimum wage as a policy known to lower state suicide rates. Limitations of research include model mis-specification, conflicting results especially when ecological data are employed, and a need for more research exploring moderators of established patterns such as that between religiousness and suicide.